CN105839248A - Differential-shrinkage superfine composite draw textured yarn and processing technology thereof - Google Patents
Differential-shrinkage superfine composite draw textured yarn and processing technology thereof Download PDFInfo
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- CN105839248A CN105839248A CN201610356046.6A CN201610356046A CN105839248A CN 105839248 A CN105839248 A CN 105839248A CN 201610356046 A CN201610356046 A CN 201610356046A CN 105839248 A CN105839248 A CN 105839248A
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- elater
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- superfine
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Classifications
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
- D02G1/0206—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
- D02G1/022—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting while simultaneously drawing the yarn
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
- D01D5/36—Matrix structure; Spinnerette packs therefor
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
Abstract
The invention relates to a differential-shrinkage superfine composite draw textured yarn and a processing technology thereof, and belongs to the technical field of fiber generation. The processing technology comprises the following steps of using modified copolyester and nylon 6 as raw materials, respectively melting and extruding by a screw extrusion machine, sending into double-component composite spinning equipment and special spinneret holes, cooling the sprayed melt, applying oil, winding, and spinning; preparing a differential-shrinkage splittable pre-oriented yarn, and enhancing elasticity, so as to obtain the differential-shrinkage superfine composite draw textured yarn. The differential-shrinkage superfine composite draw textured yarn prepared by the processing technology is applied to the processing of suede, waterproof fabrics and the like, so that the final fabric has the advantages of stiffness, density, fullness and the like.
Description
Technical field
The present invention relates to that a kind of different shrinkage superfine is compound adds elater and processing technique thereof, belong to fiber generation technique neck
Territory.
Background technology
Composite spinning prepares the method for superfine fibre mainly to be had sea-island-type composite spun and splits release composite spinning, its
In split release composite spinning based on polyester-nylon composite spinning, utilize the incompatibility of terylene and chinlon, at rear road alkali
Fibrillation under the effect of decrement or certain mechanical force, prepares superfine Denier fibre.Superfine fibre compared with general fibre,
Having minimum line density and high-specific surface area, the fabric being made into has high spreadability, soft, dress is easypro
The characteristics such as suitable, tone is soft, are widely used in suede nap, imitative peach face, superfine fiber leather base fabric, high tight defense
The production of water fabric, high-performance cleaning cloth, high-performance suction strainer material etc., becomes the product that added value is higher.
Polyester-nylon complex fiber is the technology of a kind of comparative maturity, raw materials used many based on normal polyester and nylon 6,
Cross section is then based on the Fructus Citri tangerinae lobe type (also referred to as rice font) of 8 segmentations.In order to produce thinner composite fibre, also have
Increasing the ration of division, as application number CN200910025727.4 discloses, " a kind of 0.06D surpasses spy and carefully washs brocade again
The preparation method of condensating fiber ", fibre section is 16 or 24 segmentations, to realize the production of more fine-denier number.
For the fabric making superfine fibre be made into, there is densification, well-pressed, plentiful effect, it is often necessary to super
Fine fibre is incorporated to a high-shrinkage fibre, during making fabric arrange after dyeing, due to high-shrinkage fibre
Shrink, make cloth cover overall shrinkage, produce fine and close and abundant cut velvet effect.But the high-shrinkage fibre being incorporated to can make
There is aberration and tightly puts phenomenon in fabric, affects the style of final fabric.
To this end, application number CN201310198200.8 discloses " high convergency polyester-nylon composite superfine fibre and production
Method ", add a certain amount of as core component, in nylon 6 adding a certain amount of polyurethane in conventional PET
Vistamaxx propylene-based elastomeric be another component, preparing high convergency by the method for conjugate spinning, to wash brocade multiple
Close superfine fibre, but concrete technique and fibre shrinkage index are not stated, and for super fine denier spinning
For, spinning properties can be brought greater impact by the interpolation of blend components.Application number CN201410265536.6
Disclose " preparation method of a kind of polyester-nylon composite superfine fibre with super shrinkage ", use high convergency to gather
Ester section and the ratio of chinlon 6 section, in mass ratio 80:20～60:40, prepared boiling water shrinkage reaches 15%
Above washs brocade composite superfine DTY.Described high convergency section is by adding M-phthalic acid and neopentyl glycol system
, but high-contraction polyester is as sliver part, and content is many in the fibre, and shrinkage factor is the highest, easily causes cloth cover hard
Firmly, affect flexibility, and the chinlon of rice character segment is distributed between high convergency sliver, it is impossible to produce lofting effect.
Application number CN201510422893.3 discloses that " a kind of rip-panel type high convergency chinlon is combined fully drawn yarn and system thereof
Preparation Method ", high convergency component and chinlon component the bicomponent composite fibre being combined with each other, cross section is rip-panel
Shape, wherein chinlon component: the percentage by weight of high convergency component is 55～65:45～35, boiling water shrinkage
It is about 10%, but undeclared high convergency section index used, and cross section is rip-panel shape (namely rice word
Shape), support is big with the contact surface of sliver, makes the contractility of holder part less than interfibrous frictional force, it is more difficult to
Produce different contractive effect.And these methods, only account for the impact of fiber boiling water shrinkage, in fact for super
Thin composite fibre, it is important that the different contraction between fibre fractionation, i.e. by fibrillation, makes the component bag that shrinkage factor is low
Overlay on outside the component that shrinkage factor is high, form fluffy, the fine and close and resultant effect of cut velvet.So the selection of component,
The design in cross section and the control of processing technique are most important.
Prior art such as Application No. 032345356, Application No. 2008100636505 is then by means of island
Yarn spinning method or water-soluble material characteristic form superfine fibre, but this mode has particular/special requirement to raw material, its
Product variety is limited, and the fine structure of fiber itself is destroyed, and mechanical performance cannot meet use demand.
Based on this, make the application.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, it is provided that a kind of different contraction is split release superfine composite and added adding of elater
Work technique, the method with modified copolyester and chinlon 6 (PA6) as raw material, through the method for composite spinning, system
It is able to modified copolyester split release being combined for the different contraction that " support ", PA6 be " sliver " and add elater (DTY).
For achieving the above object, the technical scheme that the application uses is as follows:
A kind of different shrinkage superfine is combined the processing technique adding elater, with modified copolyester and nylon 6 (PA6) is
Raw material, melt extrudes through screw extruder respectively, enters double-component composite spinning equipment and the spray webbing of particular design
Hole, the melt of ejection is cooled, the spinning process that oils, wind, first prepares different contraction and splits release preoriented yarn
(POY), then through texturing craft prepare with modified copolyester be " support ", PA6 be the different receipts of " sliver "
Release being combined of draw adds elater (DTY).
Main technical process therein and technical parameter include:
(1) modified copolyester: add 5% M-phthalic acid in normal polyester, 5～10% Polyethylene Glycol,
Fusing point 230～234 DEG C, intrinsic viscosity 0.700 ± 0.010dl/g；
(2) spinneret orifice: Magen David or five-pointed star cross section.
(3) composite spinning
1. modified copolyester: intrinsic viscosity 0.700 ± 0.010dl/g, dry section moisture content is less than 50ppm,
Screw rod each district temperature 250～270 DEG C.
2. nylon 6: relative viscosity 2.30 ± 0.10, screw rod each district temperature 260～280 DEG C.
3. the mass ratio of modified copolyester (holder part) and nylon 6 (sliver part) be 30～50:70～
50, spinning body temperature is 270～280 DEG C, cross air blasting wind speed 0.4～0.6m/s, winding speed 2800～3200
M/min, oil applying rate 0.3～0.5%, the compound POY of brocade is washed in the different contraction preparing 80～250dtex/36f.
(4) preparation of DTY
First heater temperature 150～170 DEG C, the second heater temperature 160～180 DEG C, draw false twisting D/Y ratio
The ratio of process velocity (the frictional disk speed with) 1.9～2.1, drafting multiple 1.55～1.65, process velocity 400～
600m/min.Prepared specification be 50～150dtex/36f different contraction wash brocade composite DTY.
The cross section using the superfine composite obtained by above-mentioned technique to add elater is made up of support and sliver, sliver with
Frame concentric is arranged, and support is five-pointed star or Magen David shape, and sliver is around a frame peripheral；This adds elater
Be the specification that the POY by 80～250dtex/36f is formed through adding bullet be 50～150dtex/36f.
The operation principle of the present invention and having the beneficial effect that:
(1) the application is to add 5% M-phthalic acid, 5～10% poly ethyldiol modified copolyesters and nylon 6
(PA6) it is raw material, melt extrudes through screw extruder respectively, enter double-component composite spinning equipment and from tool
There is a spinneret orifice ejection melt of Magen David and (or) five-pointed star, cooled, the spinning process that oils, wind, first
Prepare different contraction and split release preoriented yarn (POY), then prepare with modified copolyester for " propping up through texturing craft
Frame ", PA6 be that the different contraction of " sliver " is split and release compound added elater (DTY).This fiber is not required to be incorporated to separately
High-shrinkage fibre, so that it may directly woven into fabric, during Alkali reduction, the modified copolymer ester fiber of support and splitting
The chinlon 6 of sheet is peeling-off.In high-temperature dyeing procedure later, because modified copolymer ester fiber shrinks further,
Chinlon part can be coated on modified copolyester fiber peripheral, makes final fabric have densification, well-pressed, plentiful effect
Really.
(2), in the present invention, modified copolyester is to add 5% M-phthalic acid, 5-10% in normal polyester
Polyethylene Glycol, its fusing point 230-234 DEG C, intrinsic viscosity 0.700 ± 0.010dL/g, thus formed constitutional balance,
The compound monomer that the compatibility is good, the melt that this monomer is formed after melt extruding and nylon 6 melt have very well
The compatibility, when the spinneret orifice through double-component filament spinning component spinneret, as the polyester PET of " sliver "
While keeping self component independence, well it is fitted on " support " modification of nylon, is therefore carrying out
Before stripping, both still can form the fiber that structure is homogeneous, do not have obvious delamination, satisfactory mechanical property.
(3) in the application, the modified copolyester proportion of " support " part relatively " sliver " portions of nylon 6
Content is low, and during alkali decrement treatment, modified copolyester is peeling-off with nylon 6 part, and ratio is less
In modified copolyester contraction process will not the globality of excessive influence fiber, and guarantee that fine denier polyester is coated on modification
Around nylon fiber, can be used for high-grade suede nap, imitative peach face, superfine fiber leather base fabric, highly dense waterproof knit
The production of thing, high-performance cleaning cloth etc..
Accompanying drawing explanation
Fig. 1 is the first structural representation of the application spinneret；
Fig. 2 is the second structural representation of the application spinneret；
Fig. 3 is the process chart of the application.
Wherein label: 1. support；2. sliver.
Detailed description of the invention
The spinneret plate structure of the double-component filament spinning component that the application is used can be found in Fig. 1 or Fig. 2, its medium-height trestle
1 is Magen David or five-pointed star, and sliver 2 is distributed in support 1 around.
With modified copolyester and nylon 6 as raw material, wherein, in conjunction with Fig. 3, modified copolyester (modified PET)
Crystallized be dried-1, screw extruder-1 melted after, through dosing pump-1 metering and send into double-component filament spinning component,
Meanwhile, nylon 6 (PA6) is crystallized is dried-2, screw extruder-2 melted after, measure also through dosing pump-2
Send into double-component filament spinning component, after double-component filament spinning component spinning is extruded, through cross air blasting cooling, oil, then
Deliver to POY winding through draw-off godet-1, draw-off godet-2, then form modified copolyester and nylon 6 through texturing craft
Split that release different shrinkage superfine is compound adds elater.
Below by way of specific embodiment, the invention will be further described.
Embodiment 1
A kind of different shrinkage superfine of the present embodiment is combined the processing technique adding elater, and the intrinsic viscosity of copolyesters is
0.700dl/g, fusing point 230 DEG C, dry section moisture content is less than 50ppm, screw rod each district temperature 250～270 DEG C；
Nylon 6 relative viscosity 2.3, dry section moisture content is less than 100ppm, screw rod each district temperature 260～280 DEG C.
Modified copolyester is 30:70 with the mass ratio of nylon 6, and fibre section is that hexagonal is star-like (such as Fig. 1 institute
Show), spinning body temperature is 270 DEG C, cross air blasting wind speed 0.4m/s, winding speed 2800m/min, prepares
The compound POY of brocade is washed in the different contraction of 80dtex/36f.
Embodiment 2
The present embodiment is identical with the setting of embodiment 1 and operation principle, and difference is: the intrinsic viscosity of copolyesters
For 0.700dl/g, fusing point is 232 DEG C, dry section moisture content less than 50ppm, screw rod each district temperature 250～
270℃；Nylon 6 relative viscosity 2.3, dry section moisture content less than 100ppm, screw rod each district temperature 260～
280℃。
Modified copolyester is 40:60 with the mass ratio of nylon 6, and fibre section is that hexagonal is star-like, manifold body temperature
Degree is 275 DEG C, cross air blasting wind speed 0.5m/s, winding speed 3000m/min, prepares 160dtex/36f's
The compound POY of brocade is washed in different contraction.
Embodiment 3
The present embodiment is identical with the setting of embodiment 1 and operation principle, and difference is: the intrinsic viscosity of copolyesters
0.700dl/g, fusing point is 234 DEG C, and dry section moisture content is less than 50ppm, screw rod each district temperature 250～270 DEG C；
Nylon 6 relative viscosity 2.3, dry section moisture content is less than 100ppm, screw rod each district temperature 260～280 DEG C..
Modified copolyester is 50:50 with the mass ratio of nylon 6, and fibre section is that hexagonal is star-like, manifold body temperature
Spend 280 DEG C, cross air blasting wind speed 0.6m/s, winding speed 3200m/min, prepare the different of 250dtex/36f
The compound POY of brocade is washed in contraction.
Embodiment 4
The present embodiment is identical with the setting of embodiment 1 and operation principle, and difference is: the intrinsic viscosity of copolyesters
For 0.700dl/g, fusing point 232 DEG C, dry section moisture content is less than 50ppm, screw rod each district temperature 250～270 DEG C；
Nylon 6 relative viscosity 2.3, dry section moisture content is less than 100ppm, screw rod each district temperature 260～280 DEG C.
Modified copolyester is 40:60 with the mass ratio of nylon 6, and fibre section is that five-pointed star type is (such as Fig. 2 institute
Show), spinning body temperature is 275 DEG C, cross air blasting wind speed 0.5m/s, winding speed 3000m/min, prepares
The compound POY of brocade is washed in the different contraction of 160dtex/36f.
Comparative example 1
The intrinsic viscosity of normal polyester is 0.685dl/g, and fusing point is 258 DEG C, and dry section moisture content is less than 50
Ppm, screw rod each district temperature 270～290 DEG C；Nylon 6 relative viscosity 2.3, dry section moisture content is less than 100
Ppm, screw rod each district temperature 260～280 DEG C.
Normal polyester is 40:60 with the mass ratio of nylon 6, and fibre section is five-pointed star type, manifold body temperature
Spend 295 DEG C, cross air blasting wind speed 0.5m/s, winding speed 3000m/min, prepare the different of 160dtex/36f
The compound POY of brocade is washed in contraction.
Embodiment 5
DTY processing is carried out: the first heater temperature 150 DEG C, the second hot tank with embodiment 1 gained POY product
Temperature 160 DEG C, draw false twisting D/Y ratio 1.9, drafting multiple 1.65, process velocity 400m/min.
Above-mentioned technique obtains the different contraction that specification is 50dtex/36f and washs brocade composite DTY.
Embodiment 6
DTY processing is carried out: the first heater temperature 160 DEG C, the second hot tank with embodiment 2 gained POY product
Temperature 170 DEG C, draw false twisting D/Y ratio 2.0, drafting multiple 1.60, process velocity 500m/min.
Above-mentioned technique obtains the different contraction that specification is 100dtex/36f and washs brocade composite DTY.
Embodiment 7
DTY processing is carried out: the first heater temperature 170 DEG C, the second hot tank with embodiment 3 gained POY product
Temperature 180 DEG C, draw false twisting D/Y ratio 2.1, drafting multiple 1.55, process velocity 600m/min.
Above-mentioned technique obtains the different contraction that specification is 150dtex/36f and washs brocade composite DTY.
Embodiment 8
DTY processing is carried out: the first heater temperature 160 DEG C, the second hot tank with embodiment 4 gained POY product
Temperature 170 DEG C, draw false twisting D/Y ratio 2.0, drafting multiple 1.6, process velocity 500m/min.
Above-mentioned technique obtains the different contraction that specification is 100dtex/36f and washs brocade composite DTY.
Comparative example 2
With the POY product of comparative example 1 gained, carry out DTY processing.Set the first heater temperature 160 DEG C,
Second heater temperature 170 DEG C, draw false twisting D/Y ratio 2.0, drafting multiple 1.6, process velocity 500m/min.
Obtain the different contraction that specification is 100dtex/36f and wash brocade composite DTY.
Fiber prepared by above-described embodiment is carried out performance test, and its testing standard is respectively as follows:
(1) fracture strength of fiber and elongation at break: by " GB/T 14344-2008 chemical fiber filament
Erichsen test method " test.
(2) shrinkage factor of suspenders: fiber is made into suspenders, then alkali concn be 2%, temperature 100 DEG C
Lower process 30min, after suspenders clear water is cleaned, then processes 30min at 125 DEG C, test suspenders longitudinally and
Horizontal shrinkage factor.
Shrinkage factor=(L0-L)/L0× 100%.
Wherein, L0Representing suspenders before treatment longitudinally height or transverse width, L represents that the suspenders after contraction is longitudinally
Height or transverse width.
The main preparation technology of table 1 POY and fibrous physics index
The main preparation technology of table 2 DTY and fibrous physics index
By above-described embodiment and table 1, table 2 comparison it can be seen that above-mentioned technique is with modified copolyester and Buddhist nun
Dragon 6 is main material, after melting and extrude respectively, enters many components together and is combined in different screw extruders
Spinning equipment and the filament spinning component of particular design, spinneret, spray by such as Fig. 1 or Fig. 2 from same spinneret
The melt that shown cross section is made up of " support 1 " and " sliver 2 ", cools down through cross air blasting, oil, winds,
First prepare and split release preoriented yarn (POY), then through texturing craft prepare with modified copolyester be " support ",
Nylon 6 is that release being combined of splitting of " sliver " adds elater (DTY).Fiber through after road Alkali reduction split into ultra-fine
Fiber, and because modified copolyester of " support 1 " part has higher shrinkage factor, at Alkali reduction and afterwards
In high-temperature dyeing procedure, shrinkage factor is gradually increased, and the nylon 6 of " sliver 2 " part is coated on modified copolyester
Around, make final fabric have densification, well-pressed, plentiful effect, can be used for high-grade suede nap, imitative peach face,
The production of superfine fiber leather base fabric, highly dense waterproof fabric, high-performance cleaning cloth etc..
Above content is that the preferred implementation combining the invention is entered one to what provided technical scheme made
Step describes in detail, it is impossible to assert that the invention is embodied as being confined to these explanations above-mentioned, for the present invention
For creating person of an ordinary skill in the technical field, without departing from the concept of the premise of the invention, also
Some simple deduction or replace can be made, all should be considered as belonging to the protection domain of the invention.
Claims (8)
1. a different shrinkage superfine is combined the processing technique adding elater, it is characterized in that: with modified copolyester and nylon 6 as raw material, melt extrude through screw extruder respectively, enter many components composite spining module, the spinning process that the melt sprayed through filament spinning component spinneret is cooled, oils, wind, first prepare different contraction and split release preoriented yarn, then through texturing craft prepare with modified copolyester be " support ", PA6 be that the different contraction of " sliver " is split release being combined and added elater.
A kind of different shrinkage superfine the most as claimed in claim 1 is combined the processing technique adding elater, it is characterised in that: described modified copolyester is to add 5 % M-phthalic acids in polyester, the copolymer of 5～10 % Polyethylene Glycol copolyreaction, its fusing point 230～234 DEG C.
A kind of different shrinkage superfine the most as claimed in claim 1 is combined the processing technique adding elater, it is characterised in that: on described spinneret, spinneret orifice is Magen David or five-pointed star cross section.
A kind of different shrinkage superfine the most as claimed in claim 1 is combined the processing technique adding elater, it is characterized in that: in described spinning process, modified copolyester intrinsic viscosity 0.700 ± 0.010 dl/g, dry section moisture content is less than 50 ppm, screw rod each district temperature 250～270 DEG C.
A kind of different shrinkage superfine the most as claimed in claim 1 is combined the processing technique adding elater, it is characterised in that: in described spinning process, the relative viscosity 2.30 ± 0.10 of nylon 6, screw rod each district temperature 260～280 DEG C.
A kind of different shrinkage superfine the most as claimed in claim 1 is combined the processing technique adding elater, it is characterized in that: in described spinning process, modified copolyester is 30～50:70～50 with the mass ratio of nylon 6, spinning body temperature 270 ~ 280 DEG C, cross air blasting wind speed 0.4 ~ 0.6 m/s, winding speed 2800 ~ 3200 m/min, oil applying rate 0.3～0.5 %, the compound POY of brocade is washed in the different contraction preparing 80～250 dtex/36f.
A kind of different shrinkage superfine the most as claimed in claim 1 is combined the processing technique adding elater, it is characterized in that, described texturing craft is: the first heater temperature 150～170 DEG C, second heater temperature 160～180 DEG C, draw false twisting D/Y ratio 1.9～2.1, drafting multiple 1.55～1.65, process velocity 400～600 m/min.
8. the different shrinkage superfine that the processing technique as described in any one of claim 1-7 obtains is compound adds elater, it is characterized in that: described superfine composite adds the cross section of elater and is made up of support and sliver, sliver is arranged with support concentric, and support is five-pointed star or Magen David shape, sliver is around a frame peripheral；This add elater be the specification that the POY by 80～250 dtex/36f is formed through adding bullet be 50～150 dtex
/36f。
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| CN106498604A (en) * | 2016-10-17 | 2017-03-15 | 江苏新凯盛企业发展有限公司 | A kind of production method of slim PK Glove suedes polar fleece fabric |
| CN106591978A (en) * | 2016-11-14 | 2017-04-26 | 浙江理工大学 | Curly two-color nylon fiber processing technology |
| CN109881298A (en) * | 2019-03-12 | 2019-06-14 | 苏州申久高新纤维有限公司 | A kind of superfine composite adds elater and its processing technology |
| CN112281310A (en) * | 2020-10-23 | 2021-01-29 | 中原工学院 | Improved spun-bonding device, forming method and split type double-component filament-based superfine fiber material |
| CN112899818A (en) * | 2020-09-18 | 2021-06-04 | 大连工业大学 | Latent shrinkage composite fiber for protective clothing, micro-bump high-density hydrophobic knitted fabric and preparation method thereof |
| CN113373561A (en) * | 2021-06-10 | 2021-09-10 | 杭州红港化纤有限公司 | High-elasticity DTY and production process thereof |
| CN114108114A (en) * | 2021-10-18 | 2022-03-01 | 浙江古纤道股份有限公司 | Preparation method of split type superfine flat yarn |
| CN114182372A (en) * | 2021-10-18 | 2022-03-15 | 浙江理工大学 | Preparation method of superfine flat yarn |
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| CN114182372A (en) * | 2021-10-18 | 2022-03-15 | 浙江理工大学 | Preparation method of superfine flat yarn |
| CN114232156A (en) * | 2021-12-22 | 2022-03-25 | 江苏德力化纤有限公司 | Preparation method of split-fiber aggregation-type polyester yarn |
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